\magnification=1200 \hsize=4in \nopagenumbers \noindent % % {\bf Albin L. Jones} % % \medskip \noindent % % {\bf A short proof of a partition relation for triples } % % \vskip.5cm \noindent % % We provide a much shorter proof of the following partition theorem of P.~Erd\H{o}s and R.~Rado: If~$X$ is an uncountable linear order into which neither~$\omega_1$ nor~$\omega_1^{*}$ embeds, then $X \to (\alpha, 4)^{3}$ for every ordinal~$\alpha < \omega + \omega$. We also provide two counterexamples to possible generalizations of this theorem, one of which answers a question of E.~C.~Milner and K.~Prikry. \bye .